It has led to a years-long wave of purple lights that mysteriously appear and then disappear across the nation. It's generated incorrect theories, potentially dangerous lighting and fans of an ...

A purple wave of faulty streetlights has swept across the USA, generating incorrect theories, bad lighting and fans of an accidental aesthetic.

Two types of adaptive visual sensor in the retina, plus a variable diameter pupil, and eyelids that can squint, allow vision over at least nine decades of intensity and perception of colours from ...

According to Scientific American, the purple hue isn’t exactly intentional. For years, cities have been upgrading public lighting infrastructure, going from sodium lamps to LED (light emitting ...

There are plenty of reasons you might see porches lit with colors beyond standard fluorescent or LED ... porch lighting is to highlight childhood cancer awareness. And when it comes to purple ...

The ultimate goal for LED-based white lighting is to replace all incandescent bulbs and compact fluorescent lamps to provide an energy-efficient and long-lasting option for everyday use.

Foreo’s newest LED mask features a hefty 600 lights and offers eight different wavelengths, adding healing green, regenerating purple and inflammation-calming cyan to the traditional hues.